A flying blade is a large, crescent-shaped blade anchored to a 10-foot chain. You fight with a flying blade by spinning it about your head or by snapping it toward an opponent.
The flying blade is a clumsy weapon and receives a –2 penalty on attack rolls, but when you make attacks of opportunity provoked by movement, you receive a +2 bonus on attack rolls instead of the penalty.
Pathfinder Roleplaying Game Ultimate Combat. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.